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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 745-748 |
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Pourpars P, Golmohammadi S. Design of Tunable Metamaterial Absorber Based on Graphene in Terahertz Frequency Range. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :745-748
URL: http://opsi.ir/article-1-2174-en.html
URL: http://opsi.ir/article-1-2174-en.html
Abstract: (1598 Views)
In this article a three dimensional metamaterial absorber in terahertz frequency range has been designed using of patterned Graphene. By using the tunability of surface conductivity in Graphene and changing the chemical potential the tunability is possible in the absorber. The simulation results shows about 95% absorption in three broad bands in 
λ= 
, 
and 
λ=51 μm in the terahertz range. The structure absorber is composed of Graphene Array on top of the Gold separated by SiO2 thick dielectric layer. Finally, because of four-fold symmetry in the structure, polarization independent absorption for this structure is achieved, where proposed structure can be employed in sensors and switching systems.
λ= , and λ=51 μm in the terahertz range. The structure absorber is composed of Graphene Array on top of the Gold separated by SiO2 thick dielectric layer. Finally, because of four-fold symmetry in the structure, polarization independent absorption for this structure is achieved, where proposed structure can be employed in sensors and switching systems.
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